Modeling the overcharge process of VRLA batteries

W. B. Gu, G. Q. Wang, C. Y. Wang

Research output: Contribution to conferencePaperpeer-review

8 Scopus citations


A multiphase, electrochemical and thermal coupled model is developed for valve-regulated lead-acid (VRLA) batteries. Physical phenomena that are involved in the VRLA battery overcharge process, such as gas generation, transport, and recombination, electrolyte displacement and capillary flow, and the venting event during discharge/rest/charge, are incorporated in the model. The effects of important parameters, including the electrolyte saturation level, interfacial mass transfer coefficient of oxygen, and electrode morphology factor, are extensively studied. An overview of the simulation capabilities of the present comprehensive model is provided.

Original languageEnglish (US)
Number of pages6
StatePublished - 2001
Event16th Annual Battery Conference on Applications and Advances - Long Beach, CL, United States
Duration: Jan 9 2001Jan 12 2001


Other16th Annual Battery Conference on Applications and Advances
Country/TerritoryUnited States
CityLong Beach, CL

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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